Radiofrequency knife is a kind of precision radiotherapy technology, which is another advanced treatment technology introduced from abroad for head and body tumors after Gamma Knife. Radio wave knife is mainly used in the limited and precise treatment of body tumors. For many body tumors, radio wave knife technology has more advantages than traditional gamma knife, and because of the integration of respiratory dynamic tracking technology, for lung cancer, liver cancer and other tumors that move more with respiration, it is possible to achieve therapeutic effects through precise radiotherapy, and the side effects of radio wave knife are less compared with other radiotherapy. For more than ten years, our hospital has been carrying out radio wave knife treatment for malignant tumors with remarkable therapeutic effect, which obviously reduces patients’ pain, treatment and review costs, and brings new life to some patients with inoperable malignant tumors. Statistical results show that the treatment effect of radio wave knife is better than that of surgery. Indications for radiofrequency knife treatment: Intracranial malignant tumors: glioma, astrocytoma, glioblastoma, oligodendroglioma, hemangioblastoma, medulloblastoma, metastases, and other malignant tumors. Benign intracranial tumors: meningioma, auditory neuroma, nerve sheath meningioma, pituitary tumor, craniopharyngioma, ventricular meningioma, chordoma, and other benign tumors. Head and neck tumors: tongue cancer, laryngeal cancer, nasal cavity malignancy, tonsil cancer, parotid cancer, early stage and recurrent nasopharyngeal cancer after radiotherapy. Thoracic tumors: lung cancer, metastatic lung cancer, chest wall tumors, pleural tumors, etc. Abdominal tumors: liver cancer, pancreatic cancer, kidney cancer, prostate cancer, retroperitoneal metastatic malignant tumors, etc. Gynecologic tumors: cervical cancer, uterine cancer, ovarian cancer. Various malignant tumors of bone primary or metastasis. Various soft tissue tumors. Primary and metastatic tumors of the spinal cord. Primary and metastatic tumors of the spine. Others: arteriovenous vascular malformation, cavernous vascular malformation, trigeminal neuralgia, epilepsy, etc. It is especially suitable for the following cases: 1. tumors close to radiation-sensitive tissues and important organs (such as intracranial and spinal cord tumors) 2. complex tumors located in complex tissues and structural parts of organs that are difficult to be removed by surgery 3. multiple metastases and multiple metastases that cannot be removed by surgery 4. tumors where the patient is too weak to undergo surgery or refuses surgery 5. tumors that recur after surgery 6. tumors that have Tumors that have been irradiated by other radiotherapy equipment. The treatment cost of radiofrequency knife has always been a concern of patients, and the pricing of radiofrequency knife is still relatively high in China. Generally, a course of treatment costs 50,000-60,000 RMB, which can be reimbursed by medical insurance, with a ratio of 50%.